The installer wizard (available from the menu of Stormcloud) and the Equipment tab both give you the option to launch a discovery process that will scan for DER devices on the network your Droplet is connected to and list them automatically.

Click on Add Device to launch the discovery process:

If the Droplet had already been installed, you can re-run this process by going to the Equipment tab:

All devices automatically discovered will be listed:

If a device, like a meter, requires further setting (role, CT optron rating, etc.), click on 'Add device' and follow the instructions then click Confirm.
Note that some inverters can give you the option to be tested to validate the connection and the control are operational.

Click on 'Finish Installation' to progress to the next step.